My buddy jailbroke my phone last night. This morning I tried to make some calls but no one can hear me. I can hear them though. I tried restoring it and it still doesn't work. Can someone help me out.
Did you use it before you JB it? was it working? I would say if you've restored it and it still doesn't work take it in to Apple and get it fixed or restored.
It was an AT&T issue. Hope this response isn't too late. I had a similar problem and called apple they informed me AT&T was having server issues causing me to not be able to hear people.